Improved filtering parameter determination for the Goldstein radar interferogram filter

Z. W. Li, Xiaoli Ding, C. Huang, J. J. Zhu, Y. L. Chen

Research output: Journal article publicationJournal articleAcademic researchpeer-review

73 Citations (Scopus)

Abstract

Phase noise in a radar interferogram is directly related to interferometric coherence and the look number of the interferogram. Therefore an optimal radar interferogram filter should incorporate information on both interferometric coherence and look number. We present a modification to the commonly used Goldstein filter by suggesting an improved determination of the filtering parameter. Experimental results with both simulated and real data sets show that the new filter offers much better results when used to filter radar interferograms. (ISPRS).
Original languageEnglish
Pages (from-to)621-634
Number of pages14
JournalISPRS Journal of Photogrammetry and Remote Sensing
Volume63
Issue number6
DOIs
Publication statusPublished - 1 Nov 2008

Keywords

  • Coherence
  • Look number
  • Modified Goldstein filter
  • Phase filtering
  • Synthetic aperture radar (SAR)

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Engineering (miscellaneous)
  • Computer Science Applications
  • Computers in Earth Sciences

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